Putting power to injector for deeper cleaning.

[NeoMishMoo]

I am rebuilding and cleaning my injectors according to http://www.rowand.net/shop/Tech/DIYF...orCleaning.htm . I thought about doing my own e30 write up for r3v but before I can do that I must first finish. All I have left is to clean out the inside with compressed air while putting power to the injector. I cut off a spare harness and now I have a red/white and a brown/white wire. Can I hook up the injector straight to 12 volts with a switch? Can they handle that power or do I need a resistor? Which wire is hot and which is ground (I assume red/white is power but I don't want to make a costly mistake based on an assumption). oh yeah the wires are also numbered 1&2.

I couldn't find anything on this in the search, do you think a write up is in order?

[whodwho]

I believe you can overheat them with straight 12v and no fuel. I think I have heard people using a 9v battery, would make it easier to work with and less voltage.

[NeoMishMoo]

So red/white wire to postive? Brown/White to ground? Seems obvious but I don't want to screw the injector up.

EDIT: I've looked through the entire bentley manual and I can't find a wire guide for fuel injection. Grrr.

Oh yeah and I also looked and all 6 injectors have a red/white wire but 3 injectors have a brown/yellow and 3 have a brown/white. Maybe that helps.

UPDATE: Pretty sure the red/white wire is positive. Hooked it up to a 9v battery. All the injectors squirted pretty good except for one. It is clicking but not letting air pass through. Hmmm bad injector maybe?

[SpecM]

it shouldn't matter which way you wire it, all you are activating is a small electromagnet